Versions of Iowa Code 231.12 - Terms on LawServer 2024 Iowa Code 231.12 – Terms 2023 Iowa Code 231.12 – Terms 2022 Iowa Code 231.12 – Terms 2020 Iowa Code 231.12 – Terms 2018 Iowa Code 231.12 – Terms 2016 Iowa Code 231.12 – Terms 2014 Iowa Code 231.12 – Terms. 2009 Iowa Code 231.12 – Terms